forum post votes: add index page.

test/factories/forum_post_vote.rb

@@ -1,3 +1,7 @@
 FactoryBot.define do
-  factory(:forum_post_vote)
+  factory(:forum_post_vote) do
+    creator
+    forum_post
+    score { [-1, 0, 1].sample }
+  end
 end

test/functional/forum_post_votes_controller_test.rb

@@ -0,0 +1,22 @@
+require 'test_helper'
+
+class ForumPostVotesControllerTest < ActionDispatch::IntegrationTest
+  context "The forum post votes controller" do
+    setup do
+      @user = create(:user)
+
+      as(@user) do
+        @forum_topic = create(:forum_topic)
+        @forum_post = create(:forum_post, topic: @forum_topic)
+        @forum_post_vote = create(:forum_post_vote, creator: @user, forum_post: @forum_post)
+      end
+    end
+
+    context "index action" do
+      should "render" do
+        get forum_post_votes_path
+        assert_response :success
+      end
+    end
+  end
+end